Dirtbox Overland Rear Suspension Air Bag Kit - INEOS Grenadier & Quartermaster
Warranty Information
Vendor warranty summary
Dirtbox Overland Warranty
At a glance: 2-year structural warranty on campers/toppers; accessory terms not specified
This is Dirtbox Overland's warranty, not an NVMOS policy. We've summarized it in plain English to save you a search. The manufacturer's official terms always govern and can change without notice. Last reviewed on nvmos.com: October 4, 2026.
Coverage by product
| Product or component | Coverage |
|---|---|
| Canopy campers and truck bed toppers | 2 years (structural) |
| Campers/toppers with optional Billet Handles | +1 year (3 years total) |
| Flatbeds and drawer systems | Varies by configuration - contact Dirtbox |
| Accessories (e.g. camp tables) | Not specified |
- Original purchaser only — coverage does not transfer if you sell it.
- Keep your NVMOS order confirmation — proof of purchase is required.
What's covered
- Defects in materials and workmanship under normal use
- Remedy is repair or replacement only
What's not covered
- Normal wear and tear
- Misuse, neglect or accidents
- Unauthorized modifications, alterations or repairs
- Damage from improper installation, maintenance or storage
How to make a Dirtbox Overland warranty claim
- Contact Dirtbox customer service
- Send proof of purchase, a description of the issue and photos
- Expect possible lead times; camper/topper warranty repairs are done on location in Colorado
Dirtbox Overland contact: Phone: (720) 281-9445 · Email: info@dirtboxoverland.com · Claim page / support
Bought it from NVMOS? Start with us.
Have your order number and a few photos of the issue ready, then call real humans at (920) 249-7744 or send us a message. We'll tell you whether the claim goes through us or straight to Dirtbox Overland, and help it along either way.
Shop Dirtbox Overland at NVMOS
See all Dirtbox Overland products, lead times and FAQs →
Disclaimer: The information on this page describes Dirtbox Overland's own warranty policy. It is not a warranty offered by NVMOS (No Visible Means of Support LLC). Manufacturers update their terms at any time; we review these pages periodically, but the manufacturer's current official policy is the one that applies to your claim. Source: Dirtbox Overland official warranty information. Last updated on nvmos.com: October 4, 2026. See our return policy for NVMOS's own terms.
About the brand
Dirtbox Overland builds modular aluminum truck-camping systems near Denver, Colorado. NVMOS carries its folding camp table with a built-in cutting board, which mounts to the interior MOLLE panels of a canopy camper or truck topper for meal prep without digging out a separate table.
Based in: Commerce City, Colorado · Lead time: In stock: ships in 24–48 hours
Shop all 92 Dirtbox OverlandWarrantyAll brands
Warranty terms are set by Dirtbox Overland, not NVMOS, and can change. Bought from us? Call (920) 249-7744 and we'll handle the claim with the brand.
This rear air bag kit adds load support to the INEOS Grenadier and Quartermaster. The source names it the Traveler Mammoth Rear Suspension Air Bag Kit. It is aimed at reducing rear-end sag and keeping the vehicle more level when you carry heavy gear, tow or haul, with better stability and ride control under load.
It is built specifically for this platform, not as a universal kit. The CNC-machined body mounts at the factory bump stop location, so there is no cutting, welding or drilling into the frame. It works with the factory suspension layout and does not limit suspension travel, which keeps off-road capability and ride comfort intact.
Use cases include overlanding, towing, camping, work equipment and loaded highway driving.
Fitment
INEOS Grenadier and INEOS Quartermaster, rear axle. Two height options are offered: OEM height and a 2-inch lift.
Install notes
The design is non-destructive and replaces the factory bump stop position with a direct-fit mount. The source does not give a time estimate or tool list.
Questions before you order?
Fitment questions are easier to settle before the box ships. Call or text Carl & Anton at (920) 249-7744 or use the chat — real humans in Sheboygan, Wisconsin, not a call center.
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Specifications
Dirtbox Overland Rear Suspension Air Bag Kit FAQs
Does it need frame modifications?
No. It mounts at the factory bump stop location with no cutting, welding or drilling into the frame.
Does it limit suspension travel?
The source says it does not limit factory suspension travel.
What height options are there?
OEM height and a 2-inch lift.
Is it universal?
No. It is designed specifically for the INEOS Grenadier and Quartermaster.
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